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Cle des genres de Spongiphoridae
I. Corps petit (de 4 a 5 mm) et pubescent. Ailes posterieures visibles lorsque
repliees, deux fois plus longues que les tegmina. Antennes filiformes
ayant le quatrieme segment cylindrique et aussi long que le troisieme
(fig. 91) Labia (p. 47)
Corps plus gros (de 5 a 8 mm) et glabre. Tegmina courts, et ailes posterieures
absentes ou dissimuIees. Antennes claviformes ayant le quatrieme
segment conique et plus court que le troisieme (fig. 95) .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. Marava (p. 48)
Genus Labia Leach
Description. Body flattened, slender, pubescent, with abdomen slightly
dilated at middle. Eyes small, shorter than basal antennal segment is long.
Antennae about half as long as body, lO-12-segmented; each segment somewhat
conical, about three times longer than broad. Tegmina and wings present.
Basal and third tarsal segments equal in size, the second small and
compressed. Forceps about half as long as abdomen, of male slightly to
strongly curved (Fig. 92), of female straight and incurved apically (Fig. 93).
Labia minor (Linnaeus)
Figs. 91-94; Map 3
Forficula minor Linnaeus, 1758:423.
Labia minor; Doubleday 1838:279; HeIfer 1963:17; Vickery et al.
1974:126.
Labia minuta Scudder, 1863a:415.
Diagnosis. Body small, alate. Male pygidium rectangular, narrow.
Description. Body small (Fig. 91) (length 4-5 mm, length of tegmina
1.5 mm, male forceps 1.5-2 mm, female forceps 1.2 mm). Pronotum
narrower than head, only slightly longer than broad. Tegmina about twice
pronotal length; hind wings, when folded, twice as long as and extending
beyond tegmina. Male forceps simple, minutely toothed on inner edge
(Fig. 92). Penultimate sternum of male with rectangular projection; pygidium
visible from above (Fig. 91). Forceps of female short, rather stout, straight,
with narrowly curved tips (Fig. 93). Color usually dull yellowish brown to
brown, with head, forceps, and apical abdominal segment darker. Body,
tegmina, and wings with fine yellowish pubescence.
Range. British Columbia to Nova Scotia, south to California; Europe.
Behavior and habitats. The species occurs in a wide variety of habitats.
Morse (1920) reported it from stables, manure heaps, and fungi. It is mainly
nocturnal, flies well, and often is attracted to lights at night. It is primarily
a scavenger, although it may feed upon vegetation (floral parts) when other
food is scarce.
Life history. Morse (1920) recorded adults from 25 May to 4 November
in the New England states.
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